As Nokia releases more Nseries and XpressMusic series phones, it is only natural that they also provide Bluetooth stereo headsets to accompany these phones. Bluetooth stereo headsets are still a small part of Nokia vast portfolio of Bluetooth accessories that include mono headsets, speakers and car kits. The Nokia BH-503 is one of handful stereo Bluetooth headsets currently available from Nokia, and the only one with an over the ear design (replacing the BH-501) as of this writing. If we had not just reviewed and utterly enjoyed the Samsung SBH500 Bluetooth stereo headset, we given the Nokia BH-503 the top position in A2DP audio quality.